260 HELICELLA. 



H. idia L. & B., iii, 256. H. rozeti Mich., iii, 254. 



H. ledereri Pfr., iii, 259. v. oxygyra West. 



/. regularis Roth. H. rozetopsis L. & B. 



H. moraguesi Kob., iii, 255. H. setabulensis Pfr., iii, 256. 



H. micropristis Anc. serrula Morel. 



/. appressispira Anc. H. siderensis Malz., viii, 181. 



H. milaschewitschi Ret. H. sigensis Kob., iii, 256. 



H. morata Mouss., iv, 43. /. jolyi Pech., Anc. 

 H. montserratensis Hid., iii, 257. H. siphnica Kob. 

 H. multipunctata Mouss., iv, 43. H. spratti Pfr., iii, 253. 



H. nummuliformis Ret. siderites Friv. 



H. n^elii Mitt., iii, 258. v. perplanata Pils., viii, 181, 



H. orophea West. H. syrensis Pfr., iv, 28. 



H. parableta Bttg. H. syrosina Bgt. 



H. pollenzeusis Hid., iii, 257. H. tineana Ben., iii, 253. 



H. ponsii Hid., iii, 257. v. raista West. 



H. ponsonbyi Kob., viii, 183. v. kobeltiana W. 



H. prseclara Caf., iii, 252. H. tissotiana Bgt. 



H. prietoi Hid., iii, 257. H. tristrami Pfr., iii, 253. 



H. pulverulenta Lwe., iv, 43. H. usticensis Calc., iii, 254. 



H. retowskii Cless., iii, 252. H. zeugitana L. & B., viii, 182. 

 H. rouvieriana Bgt., iii, 255. 



Insufficiently knoivn forms of Jacosta : H. ehola Pech., caficii (Ad.) 

 West, hierica Bgt., tineiformis Let. & Bgt., soleilleti Bgt., hodnse 

 Anc., melosina Bgt., sageti Bgt., orphea West., morini, chthamalo- 

 lena, ablennia, hyperconica and tellica Bgt., eufidana callistoderma 

 and conicula Let. & Bgt., mitidjana and bibanensis Anc., eup- 

 hacodes and sphakiota Malz. 



Section Xeroleuca Kobelt, 1877. 



Xeroleuca KOB., Jahrb. D. M. Ges. 1877, p. 25. CW/.Schepman, 

 Jahrb. 1877, p. 271, 272, anat. of mograbina and degenerans. 



Shell depressed and widely umbilicated, solid, whitish and chalky, 

 having one, two or three spiral keels ; surface roughly sculptured. 

 Type H. turcica Chemn. 



The species are mostly from Morocco. Genital system (pi. 69, 

 fig. 11, H. mograbina) substantially as in Helicellaericetorum, but 

 the dart sacks are smaller. 



